Collins R390A

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Art Collins founded Collins Radio Company in 1933 in Cedar Rapids, Iowa for the purpose of designing and producing both shortwave and AM broadcast radio equipment and equipment.

The company introduced their first amateur radio receiver, the 75A-1 around 1947. This unit achieved excellent stability due to high build quality and the use of a permeability tuned oscillator (PTO) in its second conversion stage. It was one of the few dual-conversion superheterodyne receivers manufactured at that time and was designed to receive only the amateur bands.

The 75A amateur line was continued throughout the early 50s, ending with the 75A-4, released in 1955. The Collins mechanical filter was introduced in the 75A-3, and the 75A-4 was one of the first receivers marketed specifically as a single sideband receiver.

In 1958 the 75A series was replaced with the much smaller 75S series, part of the S/Line. These top-end receivers featured mechanical filters, excellent stability and very accurate frequency readout.

With the introduction of the S/Line in 1958, Collins moved to an integrated equipment system, making them the first manufacturer to take this approach. Collins was also introduced a compact HF transceiver, the KWM-1, the year before. These two innovations put Collins ahead of its competition and set the stage for other amateur radio equipment makers and the next generation of HF radios.

In 1978, the S/Line came to an end after a two decade run. The KWM-380 transceiver was introduced the next year – innovative in its use of transistors and digital technology, and its styling. It was Collins’ final entry in the amateur radio market until it was discontinued in the mid-1980s.

The Collins Radio Company was purchased by Rockwell International in 1973. In 2001 the avionics division of Rockwell International was spun off to form the current Rockwell Collins, Inc., retaining its name. Rockwell Collins serves the defense and commercial avionics industries and no longer markets receivers to the public. The company today employs over 19,000 people.

More information on Collins Radio:
Wikipedia reference on Collins Radio
Collins Collectors Association
Virtual Collins Radio Museum

Collins R390A EBay Bargains!

!!!COLLINS R-390A FRONT PANEL SCREW KIT - STAINLES
!!!COLLINS R-390A FRONT PANEL SCREW KIT - STAINLES
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IERC Tube Shields Collins R-390A Receiver Ham Radi
IERC Tube Shields Collins R-390A Receiver Ham Radi
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Collins R390A/URR radio
Collins R390A/URR radio
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KINGS BNC Female to C Male Ludlum UG-636A/U RF con
KINGS BNC Female to C Male Ludlum UG-636A/U RF con
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Collins R-390A Radio Receiver RF Deck Utah Cover P
Collins R-390A Radio Receiver RF Deck Utah Cover P
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Collins R-390A Radio Receiver Side Panel Plates
Collins R-390A Radio Receiver Side Panel Plates
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Collins R-390A Radio Receiver PTO Module
Collins R-390A Radio Receiver PTO Module
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Collins R-390A Radio Receiver Power Supply
Collins R-390A Radio Receiver Power Supply
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Collins R-390A Radio Receiver IF Deck Shaft Extend
Collins R-390A Radio Receiver IF Deck Shaft Extend
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Collins R-390A Radio Receiver Antenna Relay
Collins R-390A Radio Receiver Antenna Relay
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Collins R-390A Radio Receiver Tuning / Bandswitch
Collins R-390A Radio Receiver Tuning / Bandswitch
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Collins R-390A Radio Receiver Tuning / Bandswitch
Collins R-390A Radio Receiver Tuning / Bandswitch
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Collins R-390A Radio Receiver 15 Control Knobs
Collins R-390A Radio Receiver 15 Control Knobs
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Collins R-390A Signature Series Amateur Radio Dust
Collins R-390A Signature Series Amateur Radio Dust
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Collins R-390A Receiver NEW Chassis Mounted Capaci
Collins R-390A Receiver NEW Chassis Mounted Capaci
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COLLINS R-390A RECEIVER BOX FULL OF PARTS
COLLINS R-390A RECEIVER BOX FULL OF PARTS
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Collins R-390A Instruction Manual - Premium Card S
Collins R-390A Instruction Manual - Premium Card S
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2 Collins R-390a receivers
2 Collins R-390a receivers
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Collins R-390A RF Gain Control
Collins R-390A RF Gain Control
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Collins R-390A Radio Repair Manual Reprint
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Collins R-390A original engraved nameplate replace
Collins R-390A original engraved nameplate replace
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Collins R-390A/URR Communications Receiver - Outst
Collins R-390A/URR Communications Receiver - Outst
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BNC Female to C Male Ludlum UG-636A/U adapter Coll
BNC Female to C Male Ludlum UG-636A/U adapter Coll
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BNC Female to C Male Ludlum UG-636A/U Coaxial conn
BNC Female to C Male Ludlum UG-636A/U Coaxial conn
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Tested vintage US 6U8A Tubes for WE amplifier pre-
Tested vintage US 6U8A Tubes for WE amplifier pre-
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Collins R-390A Receiver Operators Manual Reprint
Collins R-390A Receiver Operators Manual Reprint
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6DC6 Vacuum Tube New Philips/ECG Collins R-390A et
6DC6 Vacuum Tube New Philips/ECG Collins R-390A et
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Collins R-390A Parts Manual With Lots Of Photos
Collins R-390A Parts Manual With Lots Of Photos
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Set of 4 Manuals for Collins R-390A Receiver Op Re
Set of 4 Manuals for Collins R-390A Receiver Op Re
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Set of 3 Manuals for Collins R-390A Receiver  Oper
Set of 3 Manuals for Collins R-390A Receiver Oper
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Genuine Original Collins R-390A Audio Line Output
Genuine Original Collins R-390A Audio Line Output
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Collins R-390A Receiver Maintenance Standards Manu
Collins R-390A Receiver Maintenance Standards Manu
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Collins R-390A Parts Manual
Collins R-390A Parts Manual
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COLLINS R390A PS CAPACITORS C-603 and C-606 Refurb
COLLINS R390A PS CAPACITORS C-603 and C-606 Refurb
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Collins R- 390A PS Capacitors C-603 AND C-606
Collins R- 390A PS Capacitors C-603 AND C-606
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COLLINS  R-390A   TUBE  KIT
COLLINS R-390A TUBE KIT
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6BJ6 Vacuum Tube LG Electronics Collins R-390A Lot
6BJ6 Vacuum Tube LG Electronics Collins R-390A Lot
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Collins R-390A Receiver Basic Maintenance Manual
Collins R-390A Receiver Basic Maintenance Manual
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Collins R-390A Radio Op & Repair Manual Reprin
Collins R-390A Radio Op & Repair Manual Reprin
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